ThreadPool.GetAvailableThreads(Int32, Int32) 方法

  • 参考

定义

命名空间:
System.Threading
程序集:
System.Threading.ThreadPool.dll
程序集:
mscorlib.dll
程序集:
netstandard.dll
Source:
ThreadPool.CoreCLR.cs
Source:
ThreadPool.Unix.cs
Source:
ThreadPool.Unix.cs

检索由 GetMaxThreads(Int32, Int32) 方法返回的最大线程池线程数和当前活动线程数之间的差值。

public:
 static void GetAvailableThreads([Runtime::InteropServices::Out] int % workerThreads, [Runtime::InteropServices::Out] int % completionPortThreads);
public static void GetAvailableThreads (out int workerThreads, out int completionPortThreads);
static member GetAvailableThreads : int * int -> unit
Public Shared Sub GetAvailableThreads (ByRef workerThreads As Integer, ByRef completionPortThreads As Integer)

参数

workerThreads
Int32

可用辅助线程的数目。

completionPortThreads
Int32

可用异步 I/O 线程的数目。

示例

以下示例显示启动简单应用时可用的工作线程数和 I/O 线程数。

using System;
using System.Threading;

public class Example
{
   public static void Main()
   {
      int worker = 0;
      int io = 0;
      ThreadPool.GetAvailableThreads(out worker, out io);
      
      Console.WriteLine("Thread pool threads available at startup: ");
      Console.WriteLine("   Worker threads: {0:N0}", worker);
      Console.WriteLine("   Asynchronous I/O threads: {0:N0}", io);
   }
}
// The example displays output like the following:
//    Thread pool threads available at startup:
//       Worker threads: 32,767
//       Asynchronous I/O threads: 1,000

Imports System.Threading

 Module Example
   Public Sub Main()
      Dim worker As Integer = 0
      Dim io As Integer = 0
      ThreadPool.GetAvailableThreads(worker, io)
      
      Console.WriteLine("Thread pool threads available at startup: ")
      Console.WriteLine("   Worker threads: {0:N0}", worker)
      Console.WriteLine("   Asynchronous I/O threads: {0:N0}", io)
   End Sub
End Module
' The example displays output like the following:
'    Thread pool threads available at startup:
'       Worker threads: 32,767
'       Asynchronous I/O threads: 1,000

注解

返回时 GetAvailableThreads ，指定的 workerThreads 变量包含可启动的其他工作线程数，由 completionPortThreads 指定的变量包含可启动的其他异步 I/O 线程数。

如果没有可用的线程，则其他线程池请求将保持排队状态，直到线程池线程变为可用。

适用于

另请参阅